Pipe-wrench



(No Model.) J. B. SMITH.

PIPE WRENCH. "N0. 417,652. Patented Dec. 17, 1889.

NIPETERS. F'holo-Lifllngmphen Wnhinglnn. D. c.

'normal position.

UNITED STATES PATENT OFFICE.

JAMES R. SMITH, OF BEAUMONT, TEXAS.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 417,652, dated December17, 1889. V

I Application filed May 21, 1889. Serial No. 311,517. (No model.)

To all whom it may concern:

Be it known that I, JAMEs R. SMITH, a citizen of the United States,residing at Beaumont, in the county of Jefferson and State of Texas,have invented a new and useful Pipe- XVrench, of which the following isa spocitis cation.

This invention has relation to pipe-wrenches, and among the objects inview are to provide an excessively strong serviceable wrench adapted toassume a number of adjustments without removing or changing any part,whereby it is designed for use with pipes of varying diameters, and thisin a simple and easy manner.

Referring to the drawings, Figure 1 is a perspective of a wrenchconstructed in accordance with my invention, the pivoted jaw beingdotted in one of the positions which it is adapted to assume. Fig. 2 isa side elevation of the handle bar or lever, and Fig. 3 an edge view ofthe pivoted jaw. Figs.4, 5, and 6 are plan views showing the difierentad justments of the wrench to accommodate various sizes of pipes.

Like numerals of reference indicate like parts in all the figures of thedrawings.

In practicing my invention I provide a lever 1, the rear end of whichterminates in a suitable operating-handle 2, and forward of said handlethe stock is flattened,so as to be oblong in cross-section, and isgradually tapered from its point of juncture with the handle to its heel3, at which point there is form ed a right-angularly projecting foot 4,which forms the rigid jaw of the wrench, the upper surface of which istoothed, as at 5, the disposition of the teeth being toward the point ortoe. The engaging toothed face of the foot or jaw is horizontal when thewrench is in its The edge of the handle or shank 1 for a portion of itslength in rear of the heel 3 is also toothed, as at 6, the dispo sitionof the teeth being toward the heel. In the stock of the lever andslightly below the foot portion or jaw at is provided an opening 7 8represents the C-shaped swinging jaw of the wrench, and the sameconsists of two 01)- posite substantially C-shaped curved plates 9,spaced apart at their upper ends by means of a tie-bolt 10, and havingtheir lower ends perforated, as at 11, which perforation. is

adapted to register with the perforation 7,

formed in the stock 1, and through the perforations are passed aset-bolt 12, having a nut 13. It will be observed that the spacebolt 10thus adapts the lower ends of the two plates 9 to brace the stock 1, andby reason of their being pivoted, as described, the jaw 8 may be swungupon its pivot, so as tobring its inner periphery or edge, which Itooth, as at 14, into different relation with the severalcontact-surfaces of the stock, as hereinafter mentioned. are from thefree end of the jaws rearwardly or toward their pivot, and the en ti reinner surface of each plate 9 formiu g the swinging jaws is toothed. Itwill thus be observed that, notwithstanding the position of the jaw withrelation to the stock, the teeth of the two will 'be oppositelydisposed. By swinging the jaw 8 to the different positions with relationto the upper edge of the rigid jaw or foot 4 said jaw 8 is adapted toreceive the smallest rod or tube up to a pipe of considerable size.

The disposition of the teeth 14:"

Now, by swinging the jaw to the rear or away 1 from its heel the teethof said jaw will form a continuation of the teeth 6, formed upon theedge of the stock below its heel 3, and thus the jaw will be open toreceive a pipe of greatly-increased diameter. If desired, the jaw may beswung to a directly-opposite position, so that its teeth co-operate withthe opposite edge of the stock 1, and the wrench thus adapted forgripping pipes the location of which or other surrounding obstructionswould not permit the wrench to be used in the other position. Ifdesired, also, this edge of the stock may be toothed in adirectionagreeing with those at the opposite edge, as shown by dotted lines inFig. 2.

WVhen in the position shown in Fig. 6, the inner curved edge of the footlforms a bearing-point for the pipe, and the teeth at this point (seedotted lines, Fig. 2) will assist in holding the pipe tight.

The essential feature of novelty in my Wrench resides principally in thefact that the wrench may be adjusted to accommodate threewidely-different sizes of pipes without removing or changing any of theparts, but simply by swinging the C-shaped jaw so as to engage eitherthe teeth on the foot or jaw 4, the teeth 6 on the outside of the shank,or the teeth on the curved inner side of the jaw 4: on the opposite sideof the wrench. So far as I am aware there is no other wrench that willsecure as many different adjustments as my wrench without removing boltsor working adjusting-screws and in as short a time.

Having described my invention, what I claim is- 1. In a wrench, thehandle having the integral L-shaped foot at its end forming the rigidjaw of the wrench, said foot or jaw having its inner face eurved,so asto receive and provide a bearing for the pipe, and its outer face atright angles to the handle. and said face being serrated, combined withthe C- shaped swinging jaw pivoted at one end to the handle by a singlebolt, and having its entire inner face serrated from the pivotpoint tothe outer end, and the teeth 6 along the outer edge of the handle inclose proxi imity to the rigid foot, as set forth.

2. In a wrench, the handle having the integral L-shaped foot at its end,forming the rigid jaw of the wrench, said foot or jaw having itsengaging face at right angles to the stock or handle, and said facebeing serrated, combined with the C-shaped swinging jaw pivoted at oneend to the handle by a single bolt and having its entire inner faceserrated from the pivot-point to the outer end, the

teeth 6 on the outer straight side edge of the

